An ultra-high definition high-contrast microfilm emulsion that was made panchromatic through the addition of sensitizing dyes. Special developer is needed to tame the extreme contrast for use in pictorial photography. Type 2415 in 135 and 4-inch x 5-inch sizes with 4-mil (P) base with light piping suppressing layer and 6415 Film in 120 size with a 3.6-mil (T) base. (TP)